Flushing-valve.



Af. F. CURT FLusHmG VALVE.

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FLUSHING VALVE.

APPLICATION FILED APR. 4. 1917.

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Patented June 18, 1918.

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UNITED STATES PATENT.,

ANDREW F. cumin, or MEDFORD, MASSACHUSETTS.

RUSHING-VALVE.

To all whom it may concern: Y

Be it known thatI, ANDREW F. CURTLN, a citizen of the United States, residing at Medford, in the county lof Middlesex and State of Massachusetts, have inventedl certain new and useful Improvements in Flushing-Valves; and I do hereby declare the following to be a full, clear, and exact description of the invention,,suchvas willenable others skilled in the art whichit appertains ,to make and use the same.

.lowingspecification and particularly pointed out in the appended claims. v

Thepreferred formA of theinvention'is `illustrated in. the accompanying drawings,

in which Figure 1 is a sectional elevation of the Vimproved flushing valve; Fi .'2 is a section-taken on the line 2-'2 of ig. 1; and the u per part of Fig.y 3 is a vertical section taken on the line 3-3 ofl Fig. 1,

`while the lower part of Fig. 3 is a vertical section ofa bowl,v in connection with which the improved flushing valve is used. l

As shown in the upper part of Fig. 3, theimproved flushing valve is adapted to be located within the 'usual tank or reservoir 4 secured to the wall 5 of the` room and located a convenient distance above'the bowl 6. The tankis supplied with water through the usualball cock. 4The tank-is made air ti ht by means of ya cover 7 land gaskets k8. he hollow body portion 9 ,of the valve is somewhat elliptical inioutline, as shown in Fig. 2, and is provided on the bottom with a downwardly projecting discharge pipe 10 adapted to be received in a hole in the bottom of the tank 4. A checknut 11 holds the valve body 9 in fixed' position in the tank. Y Threaded onto the lower end of the discharge pipe is a pipe 12 which connects the flushing valve with the bowl.

In one end of` the upper surface of the valve body 9 of the flushing valve is formed specification of Letters Patent.

Patented Janelle, 191s.

Application led April 4, 1917. Serial N 0. 159,773.

an outlet 13l through which the water passes from thetank into the lhollow valve body, whence vit passes through the discharge pipe 10 down through the pipe 12to the bowl 6. The upper rim 14 vof the tank outlet 13 constitutes ay valve seat, adapted to receive a resilient disk 15 secured in placeinthe lower .end ofpa tank outlet closing member or valve -proper 16 having a threaded central boss '17. The resilient disk ,vl5-isheld'in place on the valve 16,v as shown in Fig. 1, by a bolt 19'havin'g a disk-like head 20. The upypenend of the, stem 2l of the bolt19 contains a hole, in which'is loosely received vthewlower end of` arod 22, the upper end 0f .Which is loosely received ina hole in one end of a lever 23 pivoted at `24. Thev outer end 25 4,of the lever 23 projects from the tank and affords means lby which lthe lever may be -manipulated to raise the valve 16 to open the tank outlet 13 to permit the water-.from the tank to flush the vbowl 6. The'range of movement of the valve -16 is shown in dotted lines in Fig.y 1. The valve 16 is guided in its up and down movements Abyff-an open framework having guide bars 2 rising from the valve body.l An overflow pipe 29 is threaded into the upper part of the valve body 9, andonits upperv end a collar 3Q is threaded which supports a Lbracket 31, upon which the ,lever-A 23- is pivoted. -f By referenceto Fig. 3 it will be observed that thel construction and ,arrangement of the parts thus far described are such'that a free air passage exists from the Vvinterior of the bowl Vby way of the pipe 12 and up into the interior of the flushing valve,and from thence up through vthe overflow pipe 29V, into the upper, part ofthe tank 4, into which, thereopensl above the water level` a `vent 33 which discharges 4into the chimney or by a vseparate pipe into the atmosphere.

Thusthere is provided a simple and eilicient 4Ventilating system for Ventilating the bowl 6.

In order to keep the valve 16 raised from the valve seat 14, while the water is passing from the tank 4 intothe hollow valve body 9 of the vflushing valve, a spoon-like valve control member or governor 35 .is provided, located Within the valve body and pivotally mounted therein on 'a pin 36, the outer ends of which are fulcrumed in bossesin the side walls ofthe valve body. In plan the outline of Vthegovernor 35 is like the valve-body, as

shown in Fig.v 2, a suiicientspace 34 being left between the two for the flow of the water as it passes from the tank outlet around the governor to the discharge pipe 10. Caps 37 are threaded onto the outer ends of the bearing bosses and are provided with interposed resilient washers 38 to prevent leakage. The governor 35 is loosely pivoted on the pin 36, and the pin 36 is= loosely fulcrumed in its bearing bosses in order to reduce friction. To prevent cramping of the governor on'its pivot pin, the governor is provided with a long hub 39, suliicient end-play being allowed between the ends of the hub and the inner surfaces of the side walls of the valve body. By reference to Fig, 1 it will be seen that the right-hand end of the governor, which is that part situated immediately under Athe tank outlet, is hollow, and that at this end it is completely inclosed on itsupper part by the surface 43. Anopening 40 at the other end of the governor is provided leading into the interior thereof, so that water may pass into the hollow body portion of the governor for a purpose presently to be described. The governor is loosely connected with the lever 23 by means of a link 41, which passes through the overiiow pipe 29. When the flushing valve is in normal condition and the valve 16 is seated, the governor is thereby compelled to assume the position. shown in full lines in Fig, 1; and when the flushing valve is operated to permit the flushing of the bowl 6, the governor assumes the position shown in dotted lines in Fig. 1.

Vhen the lever 23 has beenvoscillated to raise the valve 16 to permit the water in the tank to flow down through the discharge pipe 10 into the bowl 6, the oscillation of the lever 23 causes theleft-hand end of the governor to be raised and its body portion to be depressed. Thereupon, as the water pours down through the tank outlet 13, it descends onto the upper surface 43 of the governor, and the force of this fall of water is such that until the tank is emptied to a predetermined extent, the governor is maintained in the position shown in dott-ed lines in Fig. 1, and therefore the valve 16 is held unseated after the lever has been released. While the water is-pouring down through the tank out-let and vdashing on top of the surface 43 to maintain the governor in operative position, a small part of the water is pouring down throughthe inlet 40 and filling the hollow body portion of the governor. The weight of this water in the body portion of the governor aids in keeping the governor in its-operative position. A small outlet aperture 44 in the bottom ofthe governor permits the water to run out therefrom. A stop 45 formed on the vlower surface 0f the governor is adapted to come into contact with the corner ofthe entrance of the discharge pipe 10, to determine the operative position of the governor.

The'ab'ove-described construction of flushing valve is such that when the valve 16 has been unseated by an oscillation of the lever 23 to permit the water to pass out of the tank into the bowl, and the governor has thereby been. moved from its inoperative position, as shown in full lines in Fig. l, to its operative position', as shown in dottedlines', the governor is held in this position by fthe force of thestream of water against it until the tank is substantially emptied, thereby keeping the valve 16 raised and the'tank outlet 13 open. While the water is passing from the tank through the body portion 9 of the iushing valve-out through the discharge pipe 10, some of it, as before stated, finds'its way into and fillsupythe interior of the governor through'- the opening 40. Theforce of the waterfalling on the surface 43 maintains the governor in itsoperative positionand the valve 16 unseated until a. predeterminedlevel lin lthe tank isreached by the recession vof vthe water therefrom. Then when the flow of the water has f decreasedto such an extent that the force of the water pouring onto thesurface 431 would be insuliicient to maintain the governorin operative position, the-,weight'of the water contained within the governor isisu'liicient for holding the governorlin operative position, and'th'erebyf holding the valve 16 vunseated while the rest ofthe water fin the' tank is iowingout to cause the refill-'of the bowl. I'During' this bowl refilling process, the water within the governor is" slowly 'draining therefrom through -the'aperture 44,

sothat bythe time the bowl is refilled-'the governor is emptied. Thereupon the latter rises andthe valve 16 descends to close'the tank outlet to permit the tank to be refilled.

Having thus described the invention, what Iclaim as new is: f'-

1. A water-closet having, in combination, a. flushing valve-comprising a `valve proper, a lever connected with theV valveproperfor actuating it, a valve control member pivoted within the body portion of the flushingva-lve arranged to receive, the force `of the water when the valve is opened and to hold the valve open for a predetermined length of time, and connections between the vlel er and the valve control member.

2. A water-closet having,'in combination, a flushing valve comprising a valve,"'a lever connected with the valve for actuating it, an overflow pipe having entra-nce into the body portion of the flushing valve, a valve ycontrol member pivoted `within the body portiony of the flushing valve, and a link located within the overiow pipe connecting thek lever with the valve controlmember.

3. A water-'closet having, inV combination,

a flushing valve comprising a valve, a hollow valve control member having a relatively large inlet and a relatively small outlet, situated within the body portion vof the flushing valve, and connectlons between'the valve control member and the valve, the construction and arrangement of these parts being such that when the valve has been unseated to permit Water to fall on the Valve control member, thevalve is thereby held 10 control member holds the valve unseated for 15 a predetermined time.

ANDREW F. CURTIN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner et Patents Washington, D. U. 

